/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2008-2011, Salzburg Research. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * - Neither the name of the KiWi Project nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Contributor(s):
 * sschaffe
 *
 * File Info:
 * User: sschaffe
 * Date: 2011/01/06
 * Time: 14:51
 *
 * Project: KiWi2, kiwi-core module
 */

package kiwi.core.webservices.triplestore;

import kiwi.core.api.transaction.TransactionService;
import kiwi.core.api.triplestore.KnowledgeSpaceService;
import kiwi.core.api.triplestore.ResourceService;
import kiwi.core.api.triplestore.TripleStore;
import kiwi.core.model.rdf.KiWiUriResource;
import kiwi.core.qualifiers.transaction.Transactional;
import kiwi.core.services.io.RdfJsonSerializer;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import javax.ws.rs.*;
import java.net.URI;
import java.net.URISyntaxException;

/**
 * Add file description here!
 * <p/>
 * User: sschaffe
 */
@ApplicationScoped
@Path("/triple")
@Produces({"application/json"})
@Transactional
public class TripleWebService {


    @Inject
    private TransactionService transactionService;

    @Inject
    private TripleStore tripleStore;

    @Inject
    private ResourceService resourceService;

    @Inject
    private KnowledgeSpaceService knowledgeSpaceService;

    @Inject
    private RdfJsonSerializer rdfJsonSerializer;

    @Path("/create")
    @POST
    @Produces("application/json")
    public String createTriple(@QueryParam("s") String subjectUri,
                               @QueryParam("p") String propertyUri,
                               @QueryParam("o") String objectUri,
                               @QueryParam("c") String spaceUri) throws URISyntaxException {
        URI _s = new URI(subjectUri);
        URI _p = new URI(propertyUri);
        URI _o = new URI(objectUri);

        KiWiUriResource s = resourceService.createUriResource(_s.toString());
        KiWiUriResource p = resourceService.createUriResource(_p.toString());
        KiWiUriResource o = resourceService.createUriResource(_o.toString());
        KiWiUriResource c = null;

        if(spaceUri != null) {
            URI _c = new URI(spaceUri);

            try {
                c = knowledgeSpaceService.createKnowledgeSpaceByUri(_c.toString());
            } catch(Exception e) {
                c = (KiWiUriResource) knowledgeSpaceService.getDefaultKnowledgeSpace();
            }
        } else {
            c = (KiWiUriResource) knowledgeSpaceService.getDefaultKnowledgeSpace();
        }

        return tripleStore.createTriple(s,p,o,c).toJSON();
    }

    @Path("/list")
    @GET
    @Produces("application/json")
    public String listTriples() {
        return rdfJsonSerializer.serializeTriples(tripleStore.listTriples(false));
    }




}
